tests/shaders/useshaderprogram-bad-program.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * \file useshaderprogram-bad-program.c
  26  * Call glUseShaderProgramEXT with a bad program, verify the error generated
  27  *
  28  * \author Ian Romanick <ian.d.romanick@intel.com>
  29  */
  30 #include "piglit-util-gl.h"
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34         config.supports_gl_compat_version = 10;
  35
  36         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 static const char bad_vs_text[] =
  41         "vec4 my_ftransform(void);\n"
  42         "void main() { gl_Position = my_ftransform(); }";
  43
  44 static const char good_vs_text[] =
  45         "void main() { gl_Position = gl_Vertex; }";
  46
  47 enum piglit_result
  48 piglit_display(void)
  49 {
  50         return PIGLIT_FAIL;
  51 }
  52
  53 void
  54 piglit_init(int argc, char **argv)
  55 {
  56         enum piglit_result result = PIGLIT_PASS;
  57         GLenum err;
  58         GLint ok;
  59         GLuint prog;
  60         GLuint vs;
  61
  62         piglit_require_gl_version(20);
  63
  64         piglit_require_extension("GL_EXT_separate_shader_objects");
  65
  66         printf("Trying shader with unresolved external symbol...\n");
  67         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, bad_vs_text);
  68         prog = glCreateProgram();
  69         glAttachShader(prog, vs);
  70         glLinkProgram(prog);
  71         glDeleteShader(vs);
  72
  73         ok = piglit_link_check_status_quiet(prog);
  74         if (ok) {
  75                 fprintf(stderr,
  76                         "Linking with unresolved symbol succeeded when it "
  77                         "should have failed.\n");
  78                 piglit_report_result(PIGLIT_FAIL);
  79         }
  80
  81         /* There shouldn't be any GL errors, but clear them all just to be
  82          * sure.
  83          */
  84         while (glGetError() != 0)
  85                 /* empty */ ;
  86
  87         /* The specified program is not linked.  This should generate
  88          * the error GL_INVALID_OPERATION.
  89          */
  90         glUseShaderProgramEXT(GL_VERTEX_SHADER, prog);
  91
  92         err = glGetError();
  93         if (err != GL_INVALID_OPERATION) {
  94                 printf("Unexpected OpenGL error state 0x%04x for "
  95                        "glUseShaderProgramEXT called with\n"
  96                        "an unlinked shader program (expected 0x%04x).\n",
  97                        err, GL_INVALID_OPERATION);
  98                 result = PIGLIT_FAIL;
  99         }
 100
 101         glDeleteProgram(prog);
 102         glUseProgram(0);
 103
 104         /* Try again with a shader program that could be linked but wasn't.
 105          */
 106         printf("Trying unlinked, valid shader...\n");
 107         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, good_vs_text);
 108         prog = glCreateProgram();
 109         glAttachShader(prog, vs);
 110         glDeleteShader(vs);
 111
 112         /* There shouldn't be any GL errors, but clear them all just to be
 113          * sure.
 114          */
 115         while (glGetError() != 0)
 116                 /* empty */ ;
 117
 118         /* The specified program is not linked.  This should generate
 119          * the error GL_INVALID_OPERATION.
 120          */
 121         glUseShaderProgramEXT(GL_VERTEX_SHADER, prog);
 122
 123         err = glGetError();
 124         if (err != GL_INVALID_OPERATION) {
 125                 printf("Unexpected OpenGL error state 0x%04x for "
 126                        "glUseShaderProgramEXT called with\n"
 127                        "an unlinked shader program (expected 0x%04x).\n",
 128                        err, GL_INVALID_OPERATION);
 129                 result = PIGLIT_FAIL;
 130         }
 131
 132         glDeleteProgram(prog);
 133         glUseProgram(0);
 134
 135         piglit_report_result(result);
 136 }